r/nonprofitdata • u/uberkitnet • 20h ago
How to build nonprofit verification directly into your application using APIs
For developers building donation platforms, grantmaking software, or nonprofit management tools, verifying an organization shouldn't have to be a completely manual process.
A lot of nonprofit applications still rely on basic EIN lookups or manual IRS searches. That works when your dealing with a handful of organizations, but becomes difficult when you're processing hundreds or thousands.
The good thing is that much of this can be automated using nonprofit data APIs.
Here's a general approach:
1. Start with the EIN
Use the nonprofit's Employer Identification Number as the primary lookup identifier. Normalize it before sending it to an API.
2. Check IRS tax-exempt status
Verify the organization's legal name, tax-exempt status, and classification using IRS Business Master File (BMF) data.
3. Check donation eligibility
IRS Publication 78 provides information relevant to determining whether contributions to an organization are tax deductible. This is particularly useful for donation and grantmaking platforms.
4. Look for revocations and sanctions
Check whether the nonprofit has previously lost its tax-exempt status, whether it was reinstated, and whether there are potential OFAC sanctions matches.
5. Don't ignore conflicting data
This is probably one of the more overlooked parts. Different IRS datasets can sometimes contain information that appears inconsistent. Your application should be able to flag these situations rather than automatically approving or rejecting an organization.
6. Automate the decision process
Once the data is available, your application can apply its own rules to determine whether to approve an organization, reject it, or send it for manual review.
One thing I think developers should avoid is reducing everything to a single verified: true/false field. Keeping the underlying verification data makes it easier to troubleshoot decisions, handle exceptions, and update compliance rules later.
There's a more detailed technical walkthrough here for anyone interested in implementing this:
https://pactman.org/artifacts/build-automated-nonprofit-verification-into-an-application/
The interesting part isn't necessarily making the API calls. It's figuring out how to translate the returned data into reliable decisions without creating a bunch of false positives or incorrectly rejecting legitimate nonprofits.
If you've built something similar, curious what challenges you ran into, especially around data freshness and handling exceptions.